MM74HC244MTCX

Product Overview

• Category: Integrated Circuit
• Use: Buffer/Line Driver
• Characteristics: High-Speed, CMOS Logic, 3-State Outputs
• Package: TSSOP-20
• Essence: The MM74HC244MTCX is a high-speed buffer/line driver integrated circuit that provides 3-state outputs. It is designed to be used in various digital applications where signal buffering and driving capabilities are required.
• Packaging/Quantity: The MM74HC244MTCX is available in a TSSOP-20 package and is typically sold in reels of 2500 units.

Specifications

• Supply Voltage: 2V to 6V
• Logic Family: HC
• Number of Channels: 8
• Output Type: 3-State
• Propagation Delay: 9 ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MM74HC244MTCX has a total of 20 pins, which are arranged as follows:

1. GND (Ground)
2. A1 (Input A1)
3. Y1 (Output Y1)
4. A2 (Input A2)
5. Y2 (Output Y2)
6. A3 (Input A3)
7. Y3 (Output Y3)
8. A4 (Input A4)
9. Y4 (Output Y4)
10. OE (Output Enable)
11. Y5 (Output Y5)
12. A5 (Input A5)
13. Y6 (Output Y6)
14. A6 (Input A6)
15. Y7 (Output Y7)
16. A7 (Input A7)
17. Y8 (Output Y8)
18. VCC (Supply Voltage)
19. GND (Ground)
20. A8 (Input A8)

Functional Features

• High-Speed Operation: The MM74HC244MTCX is designed to operate at high speeds, making it suitable for applications that require fast signal buffering and driving.
• 3-State Outputs: The integrated circuit provides 3-state outputs, allowing for easy control of the output signals.
• CMOS Logic: The MM74HC244MTCX utilizes CMOS logic technology, which offers low power consumption and high noise immunity.

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient signal buffering and driving. - 3-state outputs provide flexibility in controlling the output signals. - CMOS logic technology ensures low power consumption and high noise immunity.

Disadvantages: - Limited number of channels (8) may not be sufficient for certain applications requiring a higher number of inputs/outputs. - The TSSOP-20 package may not be compatible with all PCB designs or assembly processes.

Working Principles

The MM74HC244MTCX operates by receiving input signals on the A1-A8 pins. These input signals are then buffered and amplified by the internal circuitry. The output signals (Y1-Y8) can be enabled or disabled using the OE pin. When the OE pin is low, the outputs are active and reflect the input signals. Conversely, when the OE pin is high, the outputs are in a high-impedance state, effectively disconnecting them from the external circuit.

Detailed Application Field Plans

The MM74HC244MTCX can be used in various digital applications, including but not limited to:

1. Microcontroller interfacing: The buffer/line driver can be used to interface microcontrollers with other devices, such as sensors, displays, or memory modules.
2. Data communication: It can be employed in data communication systems to amplify and buffer signals between different components, ensuring reliable transmission.
3. Address decoding: The MM74HC244MTCX can be used for address decoding in memory or peripheral devices, allowing efficient selection of specific components.

Detailed and Complete Alternative Models

1. SN74HC244N: This is a similar 8-channel buffer/line driver IC from Texas Instruments. It has comparable specifications and pin configuration to the MM74HC244MTCX but comes in a DIP-20 package.
2. CD74HC244E: Another alternative from Texas Instruments, this IC also offers 8 channels with 3-state outputs. It is available in a PDIP-20 package.

These alternative models can be considered based on specific requirements, availability, and compatibility with the application's design and assembly constraints.

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